Cells are the fundamental units of structure and function found in all organisms. embryonic cells during the first six to eight weeks of gestation are especially vulnerable to birth defect causing agents, such as alcohol and drugs,

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase